Railway-tie.



u LF. HAHN.

RAILWAY UE. APPLICATION FILED APR. 5, |915.

1 9206,375. Patented Nov. 28, 1916.

m Wm www Wirren ein-ine 'PATENT oFFoE.

roi-inl, nenn, or lrnomrro1\r, ILLINQIS, .Assienon or onnnnnr To Jann o. GUSTASON, QF CHICAGO, ILLINOIS.

nArLWM-TIE.

Application med-@m5, 1915. serial Nn. 19,160.

'.l '0 au Iw .com i mag/ concern.'

Be it, known that I, JOHN F. RAHN, cito zen of the United' States, residing :xt Thorn ton, in the county of (look and Stato-of Illiwill not become centenbound; :incl in wliichthe tendency of the tie to crack or breek is greatly lessened.. l

A further object is to provide e-tie in which 'the reinforcing bers are-so disposed,- e'e to. inem-ev increased; strength and nreelso-- protected' fro nr exposure :to

the Weether.' Y

' 'vide e tie having n'. novelril; eeelgth'eset being so conetricteiias yto prevent tliecrmbling of .the concrete-:rnd to permit of ready and fucile attachmentof the fastening-.measles by .which the .rails nre-secured. to theftiee "i l-ith the above mentioned objectsin view, oney feature of my invention consists-in-prof. viding v'tie having 'flut `undersurr'a-ee' et; its opposite ende finit en. ii'itermeclietefportion of .lese-'width at itsnn'fler Side thanetthe enfle;- jlie endeof thetiee cre-preferably of rectangular cross-Section. andthe.. intermediate Aportion preferably of. triangular crosssection Another feature of the inventionconsis'te vn providing longitudinally extending-reinsidesfof the-'tig' a. portion -olf- `the concrete:

:speeiatinu of Lettersratent.

Patented Nov. es, loic.

' of the' tie being likewise slotted to Areceive the securing devices. v ,y

' .Other features rela-te to the various details hereinafter. more particularly pointed ouhl, The invention y muy be more readily understood, by' reference tothe accompanying drawings, in which-.

bodying the invention, with the; rails sented Athereon; shown in' cross'.-eection; Fig.v 2 is'a top,- plan Viewv of the tie; Fig. isen enlargedsoction on the line B-* of Eig. l; Figi l is an enlarged, `fr'agrioent-ary View of one of the two similar opposite ends' of the tie.; 'd Figs.. 5 and 6 are Sections on the lines 5--5 end- (1f-Fig. 4.

' Like letters of reference refer to likeperts throughout .the several views. The bodyof the tieis 'made of concrete or other Suitgtble.- plastic material reinfor-certby,Y

' Iface whicll--rests'upon therond lied. nterlneliatefseid end portionsfis of' centrati.or-in`- `terlnecligalteportion 2 having. e' sharp lower edge. V3," fsucli-i .intermediate v.portion being/.fof

the-vertex oftheltrianglefresting.upon the .road bed.. Bjr-'treason ofrtliisstrncturethe tie 'does not become center=bound'.-'AS is Well'A known', the -Wei'ghtnpon railway ties is greatest at-.the opposite ends' thereof, hence there is e tendency for tlrezends of the'ties' to. becomeenibedded inl -tl1eL -road bed.4 ton' greeterrextenttlien' the central; portion. Y:Tine centra-1:portion'ofthetie thus becones cen. 'ter-bound-mdfit is neeesscry,'5\vithltlre usual y type oftie, from'time to time'to tainpvthe 'iiponthelid bed( In tliefceee'.ofthe-pme? enblinvention', the sharp edges of the central portion of the tie perm'itof euchv central por tion being. depressed mi zimounncorrespond- --ingztotli'e r depressiono'f the ende-anonieme'- l' t the.. tie rests uni "orxnly'A upon the road bed, f.

; :Inthe case' of 'composite ties of the 'usual-'- typetheieisn:tendency 'ofthe tie'to break so 'approximately' triangular cr'ossesection 4with. 

